Compare and contrast between the three main types of lipids found in biomembranes.

Expert Solution

The three major types of lipids found in biomembranes are as follows : phosphoglycerides, sphingolipids and sterols.

These three types of lipids can be compared as follows:

Phosphoglycerides

Sphingolipids

Sterols

Monomers

Glycerol backbone + 2 hydrophobic fatty acid groups + 1 polar head group

Sphingocine backbone + 1 hydrophobic fatty acid groups + 1 polar head group

Not a polymer, have a distinctive 4 ring structure

Head group moities

Phosphate group + choline/ethanolamine/serine/inositol

Phosphate group + choline/ethanolamine/ssimple sugar residue/ oligosaccharide residue

Hydroxyl head group attached to sterol ring structure

Subtypes

Phosphatidyl choline (PC), Phosphatidyl ethanolamine (PE), Phosphatidyl serine (PS) and Phosphatidylinositol (PI)

Ceramide, Sphingomyelin, cerebroside, ganglioside

Cholesterol, ergosterol, sitosterol, stigmasterol

gladiator answered 2 years ago

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